Setting up a TV service

I am planning to set up a live TV service as like as jagobd.com. Though i am not so geek about streaming media i want to kickstart this project by myself without directly hiring an expert. Can anyone please tell me how can i send multiple streams (approximately 20) with my single pc using an Avermedia analog TV tuner. It could be RTMP or RTSP either one. And what encoder works best with Adobe Flash Media Server that can tune an analog tv tuner and send multiple streams (RTSP/RTMP) to server?